<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <link rel="stylesheet" href="index3-1.css">
</head>

<body>
  <div class="content3">
    <div class="time">还剩 <span id="LeftTime"></span></div>
  </div>

  <script>
    function FreshTime() {
      var endtime = new Date("2018/12/30,12:20:12"); //结束时间
      var nowtime = new Date(); //当前时间
      var lefttime = parseInt((endtime.getTime() - nowtime.getTime()) / 1000);
      d = parseInt(lefttime / 3600 / 24);
      h = parseInt((lefttime / 3600) % 24);
      m = parseInt((lefttime / 60) % 60);
      s = parseInt(lefttime % 60);

      document.getElementById("LeftTime").innerHTML = d + "天" + h + "小时" + m + "分" + s + "秒";
      if (lefttime <= 0) {
        document.getElementById("LeftTime").innerHTML = "团购已结束";
        clearInterval(sh);
      }
    }
    FreshTime()
    var sh;
    sh = setInterval(FreshTime, 1000);
  </script>
</body>
</html>